docs: def verify_jar_checksums(self, jar_file, strict=True):
          """
          Verify checksums, present in the manifest, against the JAR content.
          :return: list of entries for which verification has failed
          """
  
          verify_failures = []
  
          zip_file = ZipFile(jar_file)
          for filename in zip_file.namelist():
              if file_skips_verification(filename):
                  continue
  
              file_section = self.create_section(filename, overwrite=False)
  
              digests = file_section.keys_with_suffix("-Digest")
              if not digests and strict:
                  verify_failures.append(filename)
                  continue
  
              for java_digest in digests:
                  read_digest = file_section.get(java_digest + "-Digest")
                  calculated_digest = b64_encoded_digest(
                      zip_file.read(filename),
                      _get_digest(java_digest))
  
                  if calculated_digest == read_digest:
                      # found a match
                      break
              else:
                  # for all the digests, not one of them matched. Add
                  # this filename to the error list
                  verify_failures.append(filename)
  
          return verify_failures